Mac 10 Machine Gun with Suppressor Firing, originally uploaded by dagnyg.
Mark shooting a 3 round burst from a .45 ACP Mac 10 fully automatic machine gun with suppressor. It is quiet enough that ear protection is not needed – the subsonic .45 makes a difference here. You can see the 3 shells flying from the gun.
Photographed at the Prescott Action Shooters www.prescottactionshooters.com/ range in Wilhoit Az.